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<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<title>无标题文档</title>

<style>
div{width:200px;height:300px;border:1px solid #ddd;}
</style>
<script src="../第十三章事件/eventObject.js" type="text/javascript"></script>
</head>

<body>
	<form id="myForm" name="form1" action="http://www.baidu.com">

        <textarea rows="20" cols="50">初始初始值初始值初始值初始值初始值值</textarea>
   
    </form>
    <script> 
		
		var eventInstance=new EventFunction();
		
		var textbox=document.forms[0].elements[0];
		
		eventInstance.addHandler(textbox, 'keypress', function(event){
			
	
			var target=eventInstance.getTarget(event);
			
			var charCode=eventInstance.getCharCode(event);
			
			var rel=/\d/;
			
			if(!rel.test(String.fromCharCode(charCode)) && charCode>9 && !event.ctrlKey){
				console.log(1)
				eventInstance.preventDefault(event);	
				
			}
			
		});
		
    </script>
    
</body>
</html>
